## Summary of Changes
Optimized `do_intersect(polygon, polygon)`, `do_intersect(begin, end)`,
and `do_intersect(begin1, end1, begin2, end2)`:
(i) Terminated the execution once an intersection is detected. (In the
past, the intersection was computed in one phase and examined in a
subsequent phase.)
(ii) Made the variants of the free functions `do_intersect()` that apply
to linear polygons, robust even with an inexact-construction kernel. The
variants that apply to generalized polygons endure inexact constructions
much more than before; however, there are rare degenerate cases that are
still require an exact construction kernel.
In general, the changes described here do not affect the default
interface, so a small feature is not required. However, it is a major
impact, and it does affect the interface as described bellow, and even
somehow break backward compatibility.
Recently, the code of the package "2D Regularized Boolean Set
Operations" was optimized. In particular, a 3rd optional parameter was
introduced in the free functions. It determined whether the boundaries
of the input polygons are treated as cyclic sequences of single
(`x`-monotone) segments or as a cyclic sequences of (`x`-monotone)
polylines. The change described here eliminates this 3rd parameter, and
brings the interface of the `do_intersect() function back to the
original design with two input polygons.
## Release Management
* Affected package(s): Boolean_set_operations_2, Surface_sweep,
Arrangement_on_surface_2
* Feature/Small Feature (if any):
[here](https://cgalwiki.geometryfactory.com/CGAL/Members/wiki/Features/Small_Features/do_intersect_polygon_2_predicates_only)
* Link to compiled documentation (obligatory for small feature) [*wrong
link name to be changed*](httpssss://wrong_URL_to_be_changed/Manual/Pkg)
* License and copyright ownership: TAU
## Summary of Changes
Changing the used cmake target for Ceres to Ceres::ceres.
## Release Management
* Affected package(s): Installation, Polygon_mesh_processing
## Summary of Changes
cosmetic improvements of CMake outputs
### set `FOLDER` for sub-directories of CGAL
In VS Code, the CMake project outline is much cleaner if CGAL is
configured with examples and demos:
<img width="416" height="574" alt="Screenshot_20250911_154221"
src="https://github.com/user-attachments/assets/f39f4ea5-317b-4f2d-ba75-e04691674c27"
/>
### set `CMAKE_MESSAGE_INDENT` to indent the outputs in sub-folders
The output messages from sub-directories are indented, now:
```
== Generating build files for examples ==
-- Configuring examples in examples/AABB_tree
-- Configuring examples in examples/Advancing_front_surface_reconstruction
-- Configuring examples in examples/Algebraic_foundations
-- Configuring examples in examples/Algebraic_kernel_d
NOTICE: This project requires the MPFI library and GMP support, and will not be compiled.
-- Configuring examples in examples/Alpha_shapes_2
-- Configuring examples in examples/Alpha_shapes_3
-- Configuring examples in examples/Alpha_wrap_3
-- Configuring examples in examples/Apollonius_graph_2
-- Configuring examples in examples/Arrangement_on_surface_2
-- Boost include dirs: /usr/include
-- Boost libraries:
-- Using gcc version 4 or later. Adding -frounding-math
-- Configuring examples in examples/BGL_LCC
-- Configuring examples in examples/BGL_OpenMesh
-- Configuring examples in examples/BGL_arrangement_2
-- Configuring examples in examples/BGL_graphcut
-- Configuring examples in examples/BGL_polyhedron_3
Laurent Rineau
Sébastien Loriot
Sven Oesau
Efi Fogel
Mael
lvalque
lvalque